Help! How to play music box and where are owner points?

Can anyone out there help me please? I have Nintendogs Chihuahua & Friends and have a music box but I don't know how to make it play. I have moved the little needle onto the box but it still won't play. If anyone can help me I'd be most grateful. Also, how do you know how many points you have as an owner? I can't see it anywhere.